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Blockchain-based Privacy-Preserving Group Data Auditing with Secure User Revocation

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Computer Systems Science & Engineering 2023年第4期45卷 183-199页

作者： yining qi Yubo Luo Yongfeng Huang Xing Li Tsinghua University Beijing100084China Beijing National Research Center for Information Science and Technology Beijing100084China University of North Carolina at Chapel Hill North Carolina27599USA

Progress in cloud computing makes group data sharing in outsourced storage a *** join in group and share data with each other,making team work more *** new application scenario also faces data security threats,even more *** a user quit its group,remaining data block signatures must be re-signed to ensure *** researchers noticed this problem and proposed a few works to relieve computing overhead on user ***,considering the privacy and security need of group auditing,there still lacks a comprehensive solution to implement secure group user revocation,supporting identity privacy preserving and collusion attack *** at this target,we construct a concrete scheme based on ring signature and smart *** introduce linkable ring signature to build a kind of novel meta data for integrity proof enabling anonymous *** the new meta data supports secure ***,smart contracts are using for resisting possible collusion attack and malicious re-signing *** the combined effectiveness of both signature method and blockchain smart contracts,our proposal supports reliable user revocation and signature re-signing,without revealing any user identity in the whole *** and performance analysis compared with previous works prove that the proposed scheme is feasible and efficient.

关键词： Provable data possession data integrity blockchain ring signature

Blockchain-Based Privacy-Preserving Public Auditing for Group Shared Data

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Intelligent Automation & Soft Computing 2023年第3期35卷 2603-2618页

Cloud storage has been widely used to team work or cooperation *** owners set up groups,generating and uploading their data to cloud storage,while other users in the groups download and make use of it,which is called group data *** all kinds of cloud service,data group sharing also suffers from hardware/software failures and human *** Data Posses-sion(PDP)schemes are proposed to check the integrity of data stored in cloud without ***,there are still some unmet needs lying in auditing group shared *** propose four issues necessary for a secure group shared data auditing:public veriﬁcation,identity privacy,collusion attack resis-tance and ***,none of the published work has succeeded in achieving all of these properties so *** this paper,we propose a novel block-chain-based ring signature PDP scheme for group shared data,with an instance deployed on a cloud *** design a linkable ring signature method called Linkable Homomorphic Authenticable Ring Signature(LHARS)to implement public anonymous auditing for group *** also build smart contracts to resist collusion attack in group *** security analysis and performance evalua-tion prove that our scheme is both secure and efﬁcient.

关键词： Provable data possession data integrity blockchain ring signature

Blockchain-Based Light-Weighted Provable Data Possession for Low Performance Devices

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Computers, Materials & Continua 2022年第11期73卷 2205-2221页

作者： yining qi Zhen Yang Yubo Luo Yongfeng Huang Xing Li Tsinghua University Beijing100084China Beijing National Research Center for Information Science and Technology Beijing100084China Beijing University of Posts and Telecommunications Beijing100084China University of North Carolina at Chapel Hill North Carolina27599USA

Provable Data Possession(PDP)schemes have long been proposed to solve problem of how to check the integrity of data stored in cloud service without ***,with the emerging of network consisting of low performance devices such as Internet of Things,we find that there are still two obstacles for applying PDP *** first one is the heavy computation overhead in generating tags for data blocks,which is essential for setting up any PDP *** other one is how to resist collusion attacks from third party auditors with any possible entities participating the *** this paper,we propose a novel blockchain-based light-weighted PDP scheme for low performance devices,with an instance deployed on a cloud *** design a secure outsourced tag generating method for low performance devices,which enables a kind of“hash-sign-switch”two-phase tag *** this method,users with low performance devices can employ third party auditors to compute modular exponential operations that accounts for the largest portion of computation overhead in tag generation,without leaking their data *** in blockchain network ensure the correctness of such outsourcing and prevent collusion *** security analysis and performance evaluation prove that our scheme is both secure and efficient.

关键词： Provable data possession outsourced computation blockchain smart contract chameleon hash

MCMOD:The Multi-Category Large-Scale Dataset for Maritime Object Detection

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Computers, Materials & Continua 2023年第4期75卷 1657-1669页

作者： Zihao Sun Xiao Hu yining qi Yongfeng Huang Songbin Li Institute of Remote Sensing and Geographic Information System Peking UniversityBeijing100871China Department of Electronic Engineering Tsinghua UniversityBeijing100084China Institute of Acoustics Chinese Academy of SciencesBeijing100190China

The marine environment is becoming increasingly complex due tothe various marine vehicles,and the diversity of maritime objects poses a challengeto marine environmental *** object detection technologyplays an important role in this *** the field of computer vision,there is no sufficiently comprehensive public dataset for maritime objects inthe contrast to the automotive application *** existing maritimedatasets either have no bounding boxes(which are made for object classification)or cover limited varieties of maritime *** fulfil the vacancy,this paper proposed the Multi-Category Large-Scale Dataset for MaritimeObject Detection(MCMOD)which is collected by 3 onshore video camerasthat capture data under various environmental conditions such as fog,rain,evening,*** whole dataset consists of 16,166 labelled images alongwith 98,590 maritime objects which are classified into 10 *** the existing maritime datasets,MCMOD contains a relatively balancedquantity of objects of different sizes(in the view).To evaluate MCMOD,this paper applied several state-of-the-art object detection approaches fromcomputer vision research on it and compared their ***,a comparison between MCMOD and an existing maritime dataset was *** results indicate that the proposed dataset classifies moretypes of maritime objects and covers more small-scale objects,which canfacilitate the trained detectors to recognize more types of maritime objects anddetect maritime objects over a relatively long *** obtained resultsalso showthat the adopted approaches need to be further improved to enhancetheir capabilities in the maritime domain.

关键词： Object detection marine vehicles deep learning performance evaluation

Alternative splicing and related RNA binding proteins in human health and disease

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Signal Transduction and Targeted Therapy 2024年第3期9卷 839-871页

作者： yining Tao qi Zhang Haoyu Wang Xiyu Yang Haoran Mu Department of Orthopedics Shanghai General HospitalShanghai Jiao Tong University School of Medicine200000 ShanghaiChina Shanghai Bone Tumor Institution 200000 ShanghaiChina Department of Biochemistry and Molecular Cell Biology Shanghai Key Laboratory for Tumor Microenvironment and InflammationShanghai Jiao Tong University School of Medicine200000 ShanghaiChina

Alternative splicing(AS)serves as a pivotal mechanism in transcriptional regulation,engendering transcript diversity,and modifications in protein structure and *** varying tissues,developmental stages,or under specific conditions,AS gives rise to distinct splice *** implies that these isoforms possess unique temporal and spatial roles,thereby associating AS with standard biological activities and *** these,AS-related RNA-binding proteins(RBPs)play an instrumental role in regulating alternative splicing *** physiological conditions,the diversity of proteins mediated by AS influences the structure,function,interaction,and localization of proteins,thereby participating in the differentiation and development of an array of tissues and *** pathological conditions,alterations in AS are linked with various diseases,particularly *** changes can lead to modifications in gene splicing patterns,culminating in changes or loss of protein *** instance,in cancer,abnormalities in AS and RBPs may result in aberrant expression of cancer-associated genes,thereby promoting the onset and progression of *** and RBPs are also associated with numerous neurodegenerative diseases and autoimmune ***,the study of AS across different tissues holds significant *** review provides a detailed account of the recent advancements in the study of alternative splicing and AS-related RNA-binding proteins in tissue development and diseases,which aids in deepening the understanding of gene expression complexity and offers new insights and methodologies for precision medicine.

关键词： organs alterations thereby

Enabling Efficient Batch Updating Verification for Multi-versioned Data in Cloud Storage

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Chinese Journal of Electronics 2019年第2期28卷 377-385页

作者： qi yining TANG Xin HUANG Yongfeng Department of Electronic Engineering Tsinghua University Tsinghua National Laboratory for Information Science and Technology

Existing dynamic data possession verification schemes not only suffer from low efficiency of rebalancing its Merkle Hash tree(MHT) when executing data updating, but also lack effective mechanism to verify multi-version files. Aiming at these problems, this paper propose a new data structure called Rank-based multi-version Merkle AVL tree(RBMV-MAT) to achieve efficient batch updating verification for multi-version ***-MAT uses a special lock and relaxed balance to decrease the frequency of rebalacing operations. The experimental results show that our efficient scheme has better efficiency than those of existing methods.

关键词： Cloud storage Data integrity Provable data possession(PDP) Data dynamics Cloud computing

DIRA: Enabling decentralized data integrity and reputation audit via blockchain

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Science China(Technological Sciences) 2019年第4期62卷 698-701页

作者： qi yining HUANG YongFeng Department of Electronic Engineering Tsinghua University Tsinghua National Laboratory for Information Science and Technology

Nowadays more data are being generated than ever before and cloud computing has undoubtedly become one of the most important platforms for dealing with their huge ***,there are still a series of concerns that obstruct... 详细信息

关键词： data computing concerns

高海拔区特征环境驱动下混凝土坝服役性能研究进展

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水利学报 2023年第6期54卷 717-728页

作者：姚可夫田始光漆一宁周世华黄耀英苏怀智河海大学水文水资源与水利工程科学国家重点实验室江苏南京210098 河海大学水利水电学院江苏南京210098 山东电力工程咨询院有限公司山东济南250013 长江科学院材料与结构研究所湖北武汉430010 三峡大学水利与环境学院湖北宜昌443002

以青藏高原为代表的高海拔地区汇聚着中国一半以上的待开发水能资源,在国家推动实现碳达峰与碳中和目标的重大战略背景下,相关地区水利水电工程的劣化状态、运行性态、灾变模态日益受到关注。在系统梳理高海拔地区典型环境基础上,从研... 详细信息

以青藏高原为代表的高海拔地区汇聚着中国一半以上的待开发水能资源,在国家推动实现碳达峰与碳中和目标的重大战略背景下,相关地区水利水电工程的劣化状态、运行性态、灾变模态日益受到关注。在系统梳理高海拔地区典型环境基础上,从研究方法、影响规律、主控致因、防控措施等方面介绍了低大气压力、强太阳辐射、低温、低湿度、大温度日较差等高海拔地区自然环境特征对混凝土坝服役性能影响的主要研究进展。针对现有研究在高海拔区混凝土坝工程健康诊断与灾变风险防控方面的不足,从复合特征环境工况下的大坝性态馈控、混凝土多尺度劣化规律、材料与结构长期性能演化、工程组合系统行为分析等视角给出了进一步探讨的命题。

关键词：高海拔地区环境特征混凝土大坝服役性能

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耦合时序特征分解筛选的大坝变形分析模型

水力发电学报 2023年第7期42卷 56-68页

作者：漆一宁苏怀智姚可夫杨佳泉徐伟男河海大学水文水资源与水利工程科学国家重点实验室南京210098 河海大学水利水电学院南京210098 无锡市惠山区水利局江苏无锡214000

高精度的变形预测对大坝安全运行和长期维护具有重要意义。针对当下方法预测精度低、数据信息挖掘不充分的问题,通过将变形序列进行变分模态分解,构建大坝变形影响因子与分量之间的关系,进而搭建不同结构参数的长短期记忆神经网络,最终... 详细信息

高精度的变形预测对大坝安全运行和长期维护具有重要意义。针对当下方法预测精度低、数据信息挖掘不充分的问题,通过将变形序列进行变分模态分解,构建大坝变形影响因子与分量之间的关系,进而搭建不同结构参数的长短期记忆神经网络,最终提出了一种大坝变形分析模型。该模型综合灰狼算法、最小能量误差标准、最小冗余最大相关性方法等策略,从前端分解、信息提取和时序预测三方面对模型进行了改进,实现了最优化建模。实例分析表明,相较于常规监控模型,所提出的变形分析模型能够准确模拟坝体形变过程,具有较高的预测精度和泛化性能,可以为大坝变形安全分析提供参考。

关键词：大坝变形监控模型特征筛选变分模态分解长短期记忆神经网络最小冗余最大相关性